Robert Hillman and co-workers describe their new technique that allows latent fingerprints on metal surfaces to be visualised, even after the culprit has tried to wipe them away, in their recent Faraday Discussion paper, which was presented at Faraday 164 in Durham, UK.
Their technique exploits the insulating characteristics of the fingerprint deposit as a “mask” to direct electrodeposition of an electroactive polymer to the bare metal between the fingerprint ridges.
Read their article in Faraday Discussions:
Nanoscale control of interfacial processes for latent fingerprint enhancement
A. Robert Hillman, Rachel M Brown, Karl Scott Ryder, Claire Fullarton, Maximilian W. A. Skoda, Robert M Dalgliesh, Erik Watkins, Charlotte Beebee, Robert Barker and Andrew Glidle